I am looking at a chemical free cooling tower maintenance system that returns huge water savings. Is there a threshold on the number of credits for one facility component? Assuming meeting WEp1 and meeting the criteria for the following credits, can this system gather credit points for WEc1, WEc2, WEc3, WEc4.1 and/or 4.2 and WEc17 and 18? Any other credits in Innovation or IAQ? thanks...